Kogler Corporation's relevant range of activity is 7,000 units to 11,000 units. When it produces and sells 9,000 units, its average costs per unit are as follows: Average Cost per Unit $ 5.10 Direct materials Direct labor Variable manufacturing overhead Fixed selling expense Fixed manufacturing overhead Fixed administrative expense Sales commissions Variable administrative expense $ 5.20 $ 1.90 $ 11.00 $ 3.70 $ 2.00 $ 0.50 $ 0.45 If the selling price is $29.00 per unit, the contribution margin per unit sold is closest to: Multiple Choice $15.85 ($0.85) $5.80 $18.70